Save Duplicate DWG LISP Routine

Hey guys,

I found this thread on the Audodesk forums the other day…http://forums.autodesk.com/t5/Visual-LISP-AutoLISP-and-General/Save-copy-of-AutoCAD-Dwg-file-using-macro/td-p/3574830

And thought it looked like a pretty good idea. So I applied the macro code to a QuickSave LISP routine and found that it does work quite well.

One thing which is puzzling me… sometimes I get the message “A drawing with this name already exists. Do you want to replace it?” returned in the command line, other times I get no message and the routine completes successfully. My first thought was that I would only (and always) get that message when the message is true – when a file needs to be overwritten. This is not the case, sometimes I can run the routine, there can be an existing file of the same name in my “BackUp” directory, and I will not see the ‘overwrite’ message.

My code is:

(defun c:q ()
(vl-load-com)
(command "qsave")
(SETQ QSDATE (RTOS (GETVAR "CDATE") 2 0))
(vl-mkdir (strcat "D:/_DWGBackup/" QSDATE "/"))
(command "_.SAVE" (strcat "D:/_DWGBackup/" QSDATE "/" (getvar "DWGNAME")))
(princ)
)

I have since found a work-around (code below) for this problem, so it is not a solution that I seek – just and explanation as to why I would only sometimes get that message.

(DEFUN C:q (/ newname)
  (setvar "CMDECHO" 0)
  (if (zerop (getvar "dwgtitled"))
	(command "._qsave" (getstring "\n Enter drawing name: "))
	(command "_.qsave")
  )
  (setvar "filedia" 0)
  (vl-mkdir (strcat "D:/_DWGBackup/" QSDATE "/"))
  (setq newname 
		(strcat
		  "D:/_DWGBackup/" QSDATE "/"
		  (getvar "DWGNAME")
		)
  )  
  (if (findfile (strcat newname))
	(command "_.save" newname "_Y")
	(command "_.save" newname)
  )
  (setvar "filedia" 1)
  (princ)
)

Thanks for any help.

(setvar 'expert 2) ..Jeez, now im confused

That's it - thanks pBe.

That's it - thanks pBe.

Glad i could help